Bifunctional Hole-Transport Materials with Modification and Passivation Effect for High-Performance Inverted Perovskite Solar Cells.

Zhou, C; Xu, X; Liu, Z; Sun, Z; Chen, Z; Chen, X; Chen, L; Fang, X; Zhang, J; Yang, YM; Jia, X; Yuan, N; Ding, J

Bifunctional Hole-Transport Materials with Modification and Passivation Effect for High-Performance Inverted Perovskite Solar Cells.

Zhou, C Xu, X Liu, Z Sun, Z Chen, Z Chen, X Chen, L Fang, X Zhang, J Yang, YM Jia, X

Yuan, N Ding, J

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Publisher:: AMER CHEMICAL SOC
Publication Type:: Journal Article
Citation:: ACS Appl Mater Interfaces, 2023, 15, (18), pp. 22752-22761
Issue Date:: 2023-05-10

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Field	Value	Language
dc.contributor.author	Zhou, C
dc.contributor.author	Xu, X
dc.contributor.author	Liu, Z
dc.contributor.author	Sun, Z
dc.contributor.author	Chen, Z
dc.contributor.author	Chen, X
dc.contributor.author	Chen, L
dc.contributor.author	Fang, X
dc.contributor.author	Zhang, J
dc.contributor.author	Yang, YM
dc.contributor.author	Jia, X https://orcid.org/0000-0002-9214-6917
dc.contributor.author	Yuan, N
dc.contributor.author	Ding, J
dc.date.accessioned	2024-03-07T04:08:16Z
dc.date.available	2024-03-07T04:08:16Z
dc.date.issued	2023-05-10
dc.identifier.citation	ACS Appl Mater Interfaces, 2023, 15, (18), pp. 22752-22761
dc.identifier.issn	1944-8244
dc.identifier.issn	1944-8252
dc.identifier.uri	http://hdl.handle.net/10453/176257
dc.description.abstract	Hole-transport materials (HTMs) play an important role in perovskite solar cells (PSCs) to enhance the power conversion efficiency (PCE). The innovation of HTMs can increase the hole extraction ability and reduce interfacial recombination. Three organic small molecule HTMs with 4H-cyclopenta[2,1-b:3,4-b']dithiophene (CPDT) as the central unit was designed and synthesized, namely, CPDTE-MTP (with the 2-ethylhexyl substituent and diphenylamine derivative end-group), CPDT-MTP (with the hexyl substituent and diphenylamine derivative end-group), and CPDT-PMTP (with the hexyl substituent and triphenylamine derivative end-group), which can form bifunctional and robust hole transport layer (HTL) on ITO and is tolerable to subsequent solvent and thermal processing. The X-ray photoelectron spectroscopy (XPS) results proved that CPDT-based HTMs can both interact with ITO through the nitrogen element in them and the tin element in ITO and passivate the upper perovskite layer. It is worth noting that the champion efficiency of MAPbI3 PSCs based on CPDT-PMTP achieved 20.77%, with an open circuit voltage (VOC) of 1.10 V, a short-circuit current (JSC) of 23.39 mA cm-2, and a fill factor (FF) of 80.83%, as three new materials were introduced into p-i-n PSCs as dopant-free HTMs.
dc.format	Print-Electronic
dc.language	eng
dc.publisher	AMER CHEMICAL SOC
dc.relation.ispartof	ACS Appl Mater Interfaces
dc.relation.isbasedon	10.1021/acsami.3c02953
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	03 Chemical Sciences, 09 Engineering
dc.subject.classification	Nanoscience & Nanotechnology
dc.subject.classification	34 Chemical sciences
dc.subject.classification	40 Engineering
dc.subject.classification	51 Physical sciences
dc.title	Bifunctional Hole-Transport Materials with Modification and Passivation Effect for High-Performance Inverted Perovskite Solar Cells.
dc.type	Journal Article
utslib.citation.volume	15
utslib.location.activity	United States
utslib.for	03 Chemical Sciences
utslib.for	09 Engineering
pubs.organisational-group	University of Technology Sydney
pubs.organisational-group	University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	University of Technology Sydney/Faculty of Engineering and Information Technology/School of Computer Science
utslib.copyright.status	closed_access	*
dc.date.updated	2024-03-07T04:08:13Z
pubs.issue	18
pubs.publication-status	Published
pubs.volume	15
utslib.citation.issue	18

Abstract:

Hole-transport materials (HTMs) play an important role in perovskite solar cells (PSCs) to enhance the power conversion efficiency (PCE). The innovation of HTMs can increase the hole extraction ability and reduce interfacial recombination. Three organic small molecule HTMs with 4H-cyclopenta[2,1-b:3,4-b']dithiophene (CPDT) as the central unit was designed and synthesized, namely, CPDTE-MTP (with the 2-ethylhexyl substituent and diphenylamine derivative end-group), CPDT-MTP (with the hexyl substituent and diphenylamine derivative end-group), and CPDT-PMTP (with the hexyl substituent and triphenylamine derivative end-group), which can form bifunctional and robust hole transport layer (HTL) on ITO and is tolerable to subsequent solvent and thermal processing. The X-ray photoelectron spectroscopy (XPS) results proved that CPDT-based HTMs can both interact with ITO through the nitrogen element in them and the tin element in ITO and passivate the upper perovskite layer. It is worth noting that the champion efficiency of MAPbI3 PSCs based on CPDT-PMTP achieved 20.77%, with an open circuit voltage (VOC) of 1.10 V, a short-circuit current (JSC) of 23.39 mA cm-2, and a fill factor (FF) of 80.83%, as three new materials were introduced into p-i-n PSCs as dopant-free HTMs.

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http://hdl.handle.net/10453/176257